Image quality and radiation dose in 256-slice cardiac computed tomography: Comparison of prospective versus retrospective image acquisition protocols

Hosch, Waldemar; Heye, Tobias; Schulz, Felix; Lehrke, Stephanie; Schlieter, Martin; Giannitsis, Evangelos; Kauczor, Hans‐Ulrich; Katus, Hugo A.; Korosoglou, Grigorios

doi:10.1016/j.ejrad.2010.07.011

Cited by 27 publications

(28 citation statements)

References 38 publications

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“…(2,(5)(6)(7)(8)(9)14,(17)(18)(19)(20)(21)(22)(23)(24)(25)(26)(27)(28)(29)(30)(31)(32) The attrition diagram for our study depicting the search process is shown in Fig. 2 Table III.…”

Section: Resultsmentioning

confidence: 99%

“…Two other studies employed a five-point scoring scale to describe image quality, but defined these five points variously. (8,26) Hosch et al described image quality as 'excellent', 'good', 'moderate', 'poor' and 'extremely poor', (8) while Muenzel et al defined the same in terms of 'excellent quality', 'good quality', 'mild artefacts', 'severe artefacts' and 'non-evaluable' (Fig. 4).…”

Section: Systematic Review Of Image Quality Associated With Prospectimentioning

confidence: 99%

“…(20) Among the other 22 studies, 15 assessed interobserver agreement using the Cohen's kappa statistic (mean 0.8, 95% CI 0.6-0.9), indicating excellent agreement between two viewers in these studies. (2,(7)(8)(9)19,(23)(24)(25)(26)(27)(28)(29)(30)(31)(32) Two studies used consensus reading. (21,22) However, pertinent information was not available in the remaining five studies that met our selection criteria.…”

Section: Systematic Review Of Image Quality Associated With Prospectimentioning

confidence: 99%

“…(6) Several studies that used prospective ECG-gated CCTA have reported significantly reduced radiation doses. (7)(8)(9)(10)(11)(12) However, the diagnostic image quality of prospective triggering in the assessment of coronary arteries or CAD has not been systematically studied. Therefore, the purpose of this study was to investigate previous studies that assessed the coronary artery using prospective ECG-triggered CCTA for the detection of CAD, in terms of image quality and radiation dose via a systematic review of the current literature.…”

Section: Introductionmentioning

confidence: 99%

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Coronary computed tomography angiography with prospective electrocardiography triggering: a systematic review of image quality and radiation dose

Sabarudin

Sun

2013

SMedJ

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Singapore Med J 2013; 54(1) : 15 R ev iew A r tic le INTRODUCTIONCoronary computed tomography angiography (CCTA) has been widely used as a valuable diagnostic imaging modality for the noninvasive assessment of coronary artery disease (CAD). It has become a reliable and accurate modality to assess the coronary arteries of patients with suspected CAD.(1) Previous studies have found that retrospective electrocardiography (ECG)-gated CCTA provides high sensitivity (range 86%-99%) and specificity (range 89%-100%) for coronary artery stenosis, and also results in high negative predictive values (NPVs; range 96%-99%).(2,3)Prospective ECG-gated CCTA also promises high sensitivity (range 93.7%-100.0%), specificity (range 82.7%-97.0%) and NPV (range 95%-98%) in the assessment of CAD. (2,3) Although high diagnostic accuracy is achieved with both retrospective and prospective ECG-gated CCTA for detecting CAD (Fig. 1), the radiation doses associated with these two cardiac examinations are significantly different due to the different approaches used for coronary artery scanning.It is well known that CCTA with retrospective ECG gating leads to high radiation doses of up to 31.4 mSv since volumetric data of the heart is acquired during continuous scans in this modality, although only a portion of the data is used for reconstruction. (4,5) In contrast, with exposure taking place at selective phases of the cardiac cycle in patients with low and regular heart rate, prospective ECG triggering is associated with very low radiation doses, which indicates a significant reduction in effective doses of up to 87%. (6) Several studies that used prospective ECG-gated CCTA have reported significantly reduced radiation doses. (7)(8)(9)(10)(11)(12) However, the diagnostic image quality of prospective triggering in the assessment of coronary arteries or CAD has not been systematically studied. Therefore, the purpose of this study was to investigate previous studies that assessed the coronary artery using prospective ECG-triggered CCTA for the detection of CAD, in terms of image quality and radiation dose via a systematic review of the current literature. METHODS Literature searchA ABSTRACT The purpose of this study was to perform a systematic review of the diagnostic accuracy, image quality and radiation dose of prospective electrocardiography (ECG)-triggered coronary computed tomography angiography (CCTA). We searched databases containing studies of CCTA that used prospective ECG-triggering between 2008 and 2011. The effective dose and image quality reported in each study were analysed and compared between the types of multislice CT scanners. We identified 23 studies through this search, with mean assessable coronary segments and effective dose at 96.8% (95% confidence level [CI] 83%, 100%) and 3.6 mSv (95% CI 2.9, 4.3 mSv), respectively. Both quantitative and qualitative assessments of image quality indicated that image quality was achieved in studies using prospective ECG-triggered CCTA, regardless of the type of CT scanners. The pooled es...

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“…(2,(5)(6)(7)(8)(9)14,(17)(18)(19)(20)(21)(22)(23)(24)(25)(26)(27)(28)(29)(30)(31)(32) The attrition diagram for our study depicting the search process is shown in Fig. 2 Table III.…”

Section: Resultsmentioning

confidence: 99%

Section: Systematic Review Of Image Quality Associated With Prospectimentioning

confidence: 99%

Section: Systematic Review Of Image Quality Associated With Prospectimentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Coronary computed tomography angiography with prospective electrocardiography triggering: a systematic review of image quality and radiation dose

Sabarudin

Sun

2013

SMedJ

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“…19 However, increased radiation exposure dosages are required when the HR is elevated in order to obtain static images wherein the influence of the elevated HR is minimized. 20 According to previous studies, the mean HR without HR control ranges from 74 to 76 beats/min. 21,22 Therefore, it is possible to obtain sufficient diagnostic accuracy using the latest CT scanners, but the HR should be <65 beats/min when imaging in prospective gating mode in order to reduce radiation exposure.…”

Section: Discussionmentioning

confidence: 99%

Radiation-Dose-Lowering Effects of Landiolol Hydrochloride in Coronary Angiography Using Computed Tomography (DELIGHT)　– A Prospective Multicenter Study –

Kido

Mochizuki

Hirano

et al. 2016

Circ J

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Objective quantification of aortic valvular structures by cardiac computed tomography angiography in patients considered for transcatheter aortic valve implantation

Korosoglou

Gitsioudis

Waechter-Stehle

et al. 2012

Cathet Cardio Intervent

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Image quality and radiation dose in 256-slice cardiac computed tomography: Comparison of prospective versus retrospective image acquisition protocols

Cited by 27 publications

References 38 publications

Coronary computed tomography angiography with prospective electrocardiography triggering: a systematic review of image quality and radiation dose

Coronary computed tomography angiography with prospective electrocardiography triggering: a systematic review of image quality and radiation dose

Radiation-Dose-Lowering Effects of Landiolol Hydrochloride in Coronary Angiography Using Computed Tomography (DELIGHT)　– A Prospective Multicenter Study –

Objective quantification of aortic valvular structures by cardiac computed tomography angiography in patients considered for transcatheter aortic valve implantation

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Image quality and radiation dose in 256-slice cardiac computed tomography: Comparison of prospective versus retrospective image acquisition protocols

Cited by 27 publications

References 38 publications

Coronary computed tomography angiography with prospective electrocardiography triggering: a systematic review of image quality and radiation dose

Coronary computed tomography angiography with prospective electrocardiography triggering: a systematic review of image quality and radiation dose

Radiation-Dose-Lowering Effects of Landiolol Hydrochloride in Coronary Angiography Using Computed Tomography (DELIGHT) – A Prospective Multicenter Study –

Objective quantification of aortic valvular structures by cardiac computed tomography angiography in patients considered for transcatheter aortic valve implantation

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Radiation-Dose-Lowering Effects of Landiolol Hydrochloride in Coronary Angiography Using Computed Tomography (DELIGHT)　– A Prospective Multicenter Study –